Reuse computed module info

Fix to re-use the already computed module info rather than re-running it

src/index.ts

@@ -59,7 +59,7 @@ function prepareStackTraceWithSourceModules(error: Error, frames: CallSite[]): s
 
  const moduleInformation = collectModuleInformation(frames);
  if (moduleInformation) {
- return originalStack + '\n' + collectModuleInformation(frames);
+ return originalStack + '\n' + moduleInformation;
  }
 
  return originalStack;